This aerial image shows a marina filled with numerous boats docked at piers, adjacent to a concrete area and surrounded by water.

Old Harbor Marina

Old Harbor Marina in Clinton, CT is a top-notch marina offering comprehensive services for boats, including repairs, installations, and maintenance by experienced technicians. With easy access to Long Island Sound, staying at this marina is both comfortable and convenient. The facility has 24-hour camera surveillance and gated security for guests' safety. During their stay, visitors can enjoy amenities like showering and restroom facilities, as well as cable TV. Old Harbor Marina is an ideal choice for a relaxing weekend on the water.

  • The image shows a marina with many boats docked at various piers, surrounded by calm water and a distant view of the horizon and coastline.

Perfect Home For Your Ship

Reserve Your Slip

Looking for a slip to moor your boat? We have got you covered with our flexible slip reservation options. Whether you need a slip for the entire year or just a few months, or only during the boating season, choose from Annual and Seasonal options. Don't miss out on securing your spot and reserve your slip today!

860-669-3500

Winterization Services 2024

Inboard/Stern Drive Engine

  • Winterize engines
  • Add Fuel Stabilizer
  • Oil & Filter change
  • Change transmission oil
  • Change saildrive oil
    Oil analysis (at time of oil change only)
  • Remove outdrives and store
    Change gear oil, lubricate, sand, prime and paint outdrives and change zincs​
  • Change engine zincs
  • Change fuel filters​

Outboard Engine

  • Winterize engines
  • Change gear oil
  • Add Fuel Stabilizer
  • Test fresh water coolant freeze point on engines
  • Oil & Filter change
    ​Oil analysis (at time of oil change only)
  • Change engine zincs​
  • Change fuel filters

Additional Winterization Services

  • Winterize generator
  • Change generator oil
  • Service bow thruster
  • Winterize toilets
  • Deodorize holding tanks
  • Winterize holding tanks
  • Winterize water system
  • Winterize air conditioning
  • Service & disconnect batteries and open seacocks
  • Winterize ice maker
  • Winterize washing machine
  • Winterize salt water washdown/live wells
  • Replace cutlass bearings
  • Recondition props
  • Store outriggers

Shrinkwrap

  • Remove antenna, canvas, and outriggers 

What We Offer

Amenities & Services

  • The image shows an aerial view of a marina with many boats docked at piers, surrounded by water and a small portion of land on the right.

Wet Slips

Old Harbor Marina offers over 100 slips that can accommodate power boats up to 46 feet in length. Each slip features upgraded shore power and fresh water hook-ups.

  • The image shows several boats wrapped in white protective covers, stored on stands in a clear, snow-covered area, with a blue sky backdrop.

Winter Storage

At Old Harbor Marina we take pride in making your boating experience as enjoyable and turnkey as possible. Our well trained operations staff will see that you and your boat are well cared for at anyone of our locations!

  • A snowy path lined with bare trees, their branches covered in snow, stretches into the distance on a calm winter day, offering a serene, tranquil scene.

Boat Winterization

The “off-season” gives customers a chance to upgrade, change, or repair aspects of their boats. We offer a variety of services. We will haul out your boat, winterize it, store it, and put it back in the water in the spring.

  • A person uses a wrench while working on the components of an engine, focusing on detailed mechanisms and wiring connections and cables.

Engine Repair

We offer high quality boat repair and maintenance services for all types of boats including sailboats, power boats, and PWCs. Our team of professional technicians are experienced in all major engine and sterndrive manufacturers.

  • A boat with twin outboard motors on the water, with a shoreline and trees in the background under a partly cloudy sky.

Outboards Motors

If your boat needs its outboard engine repaired, you want a boat mechanic who can fix it right the first time. After all, your engine is the heart of your boat. It needs regular checkups and, sometimes, major repairs.

  • A person is using a wrench or similar tool to work on machinery or an engine part with various wires and components visible in the image.

Inboard Motors

Inboard engine repair for marine vehicles is something that takes experience and know-how to be able to do correctly. We pride ourselves in only hiring the most qualified technicians to ensure high quality repairs and service maintenance.

  • A white boat is covered with a protective material and supported by stands on a gravel surface, with other boats visible in the background.

Shrink Wrapping

Make sure that they can withstand what’s coming. Our expert shrink-wrapping services ensure that rain, sleet, or snow won’t negatively impact your marine vehicles. Call Old Harbor Marina to inquire about our affordable rates and reserve your winter storage spot today.

  • The image shows two Honda 250 horsepower outboard motors mounted on the back of a boat that's moving rapidly across the water.

Repowering Services

Old Harbor Marina has a fully equipped repowering and rigging shop. We can replace a shroud, modify the backstay, make a whole new set of standing rigging, or new lifelines with gates. If you are in need of quality repowering and rigging services contact us today.

  • The image shows a dashboard with several gauges for a Honda boat, including RPM, trim, and fuel indicators, along with safety warnings at the bottom.

Electronics Repair & Install

Inboard engine repair for marine vehicles is something that takes experience and know-how to be able to do correctly. We can install nearly any type of marine electronics you need for your boat. We can help pick out your equipment, determine the best mounting locations and install the equipment with a professional, custom look.

  • A person is using a power sander on the blue-painted hull of a boat, possibly refurbishing or preparing the boat for painting.

Boat Painting

Bottom Painting is a critical component of your boat’s maintenance plan. A clean hull is safe, fast and efficient, and a fouled bottom cuts your top speed, damages maneuverability and lowers your fuel economy.If you are painting a boat and need help and advice, then ask our experts to ensure that you protect your boat with confidence.

  • A close-up of a boat section shows the brand

Detailing Services

Boat detailing packages using the most advanced products on the market are available. In the summer sun, your boats exterior needs continuous care to maintain its appearance. A monthly washing and quarterly waxing schedule keep your boat looking good and preventing a costly repair to re-finish the boat due to sun damage.

  • Close-up of a boat being cleaned with a high-pressure water hose, focusing on the stream of water hitting the side of the boat.

Power Washing

Old Harbor Marina recommends power washing at least once throughout the season, as this will prevent bottom drag and increase fuel economy. Most boaters are surprised by the dramatic change in performance by simply power washing. Call us today, contact us online or just stop in to schedule your power washing cleaning today.